A 12-BIT 400-MS/s CURRENT-STEERING DAC WITH DEGLITCHING TECHNIQUE

被引：4
|
作者：
Xue, Xiaobo [1 ]
Zhu, Xiaolei [1 ]
Shi, Qifeng [1 ]
He, Lenian [1 ]
机构：
[1] Zhejiang Univ, Inst VLSI Design, Hangzhou 310027, Zhejiang, Peoples R China
来源：
JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS | 2014年 / 23卷 / 01期
关键词：
Digital-to-analog converter; current-steering; glitch error; switch-driver structure; CMOS;
D O I：
10.1142/S0218126614500042
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a 12-bit current-steering digital-to-analog converter (DAC) employing a deglitching technique is proposed. The deglitching technique is realized by lowering the voltage swing of the control signal as well as by using a method of glitch counteraction (GC). A new switch-driver structure is designed to enable the effectiveness of the GC and provide sufficient driving capability under a low supply voltage. Moreover, the control signal's rise/fall asymmetry which increases the glitch error can be suppressed by using the proposed switch-driver structure. The 12-bit DAC is implemented in 180nm CMOS technology. The measurement results show that the spurious free dynamic range (SFDR) at low signal frequency is 78.8 dB, and it is higher than 70 dB up to 60MHz signal frequency at 400 MS/s. The measured INL and DNL are both less than +/- 0.6 LSB.
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页数：13
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